This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Current Sink Capability of TMS570LS3137 I/O

Hi,

I am planning to drive (by pull down) an optocoupler (with open collector configuration). I searched current sink capability of N2HET pins on datasheet.   I found output buffer drive strength of N2HET pins are 2mA zero-dominant. I am not sure if it is current sink capability or not ?

4-7 mA is sufficient for opto.'s diode. It can be achived with sink current to I/O or do you recomend to amplify output with an Op-Amp.